The film’s unique narrative technique, with the first perspective of DV shooting, presents the most authentic sense of fear and suffocation, making the audience feel like they are on the scene. While challenging people’s perception of established facts, the film walks between the real case and the storyline. As the plot advances, the audience and the three young people can feel the soaring heartbeat of E and experience it. An immersive sense of substitution
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The film changed the traditional shooting method and presented in the form of a pseudo-documentary. Through constantly shaking hand-held photography, it creates a realistic viewing atmosphere, provides a strong sense of subjective perspective, and subverts everyone's cognition of previous suspense films with an intrusive experience, leaving a very deep impression on the audience
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